diff options
Diffstat (limited to 'drivers/s390/block/dasd_eckd.h')
| -rw-r--r-- | drivers/s390/block/dasd_eckd.h | 175 |
1 files changed, 148 insertions, 27 deletions
diff --git a/drivers/s390/block/dasd_eckd.h b/drivers/s390/block/dasd_eckd.h index 5869d2fede35..6943508d0f1d 100644 --- a/drivers/s390/block/dasd_eckd.h +++ b/drivers/s390/block/dasd_eckd.h @@ -50,16 +50,26 @@ #define DASD_ECKD_CCW_PFX_READ 0xEA #define DASD_ECKD_CCW_RSCK 0xF9 #define DASD_ECKD_CCW_RCD 0xFA +#define DASD_ECKD_CCW_DSO 0xF7 + +/* Define Subssystem Function / Orders */ +#define DSO_ORDER_RAS 0x81 /* - * Perform Subsystem Function / Sub-Orders + * Perform Subsystem Function / Orders */ #define PSF_ORDER_PRSSD 0x18 #define PSF_ORDER_CUIR_RESPONSE 0x1A -#define PSF_SUBORDER_QHA 0x1C #define PSF_ORDER_SSC 0x1D /* + * Perform Subsystem Function / Sub-Orders + */ +#define PSF_SUBORDER_QHA 0x1C /* Query Host Access */ +#define PSF_SUBORDER_VSQ 0x52 /* Volume Storage Query */ +#define PSF_SUBORDER_LCQ 0x53 /* Logical Configuration Query */ + +/* * CUIR response condition codes */ #define PSF_CUIR_INVALID 0x00 @@ -80,10 +90,22 @@ #define CUIR_RESUME 0x02 /* + * Out-of-space (OOS) Codes + */ +#define REPO_WARN 0x01 +#define REPO_EXHAUST 0x02 +#define POOL_WARN 0x03 +#define POOL_EXHAUST 0x04 +#define REPO_RELIEVE 0x05 +#define POOL_RELIEVE 0x06 + +/* * attention message definitions */ #define ATTENTION_LENGTH_CUIR 0x0e #define ATTENTION_FORMAT_CUIR 0x01 +#define ATTENTION_LENGTH_OOS 0x10 +#define ATTENTION_FORMAT_OOS 0x06 #define DASD_ECKD_PG_GROUPED 0x10 @@ -99,6 +121,12 @@ #define DASD_ECKD_PATH_THRHLD 256 #define DASD_ECKD_PATH_INTERVAL 300 +/* + * Maximum number of blocks to be chained + */ +#define DASD_ECKD_MAX_BLOCKS 190 +#define DASD_ECKD_MAX_BLOCKS_RAW 256 + /***************************************************************************** * SECTION: Type Definitions ****************************************************************************/ @@ -116,35 +144,12 @@ struct ch_t { __u16 head; } __attribute__ ((packed)); -struct chs_t { - __u16 cyl; - __u16 head; - __u32 sector; -} __attribute__ ((packed)); - struct chr_t { __u16 cyl; __u16 head; __u8 record; } __attribute__ ((packed)); -struct geom_t { - __u16 cyl; - __u16 head; - __u32 sector; -} __attribute__ ((packed)); - -struct eckd_home { - __u8 skip_control[14]; - __u16 cell_number; - __u8 physical_addr[3]; - __u8 flag; - struct ch_t track_addr; - __u8 reserved; - __u8 key_length; - __u8 reserved2[2]; -} __attribute__ ((packed)); - struct DE_eckd_data { struct { unsigned char perm:2; /* Permissions on this extent */ @@ -387,6 +392,86 @@ struct dasd_rssd_messages { char messages[4087]; } __packed; +/* + * Read Subsystem Data - Volume Storage Query + */ +struct dasd_rssd_vsq { + struct { + __u8 tse:1; + __u8 space_not_available:1; + __u8 ese:1; + __u8 unused:5; + } __packed vol_info; + __u8 unused1; + __u16 extent_pool_id; + __u8 warn_cap_limit; + __u8 warn_cap_guaranteed; + __u16 unused2; + __u32 limit_capacity; + __u32 guaranteed_capacity; + __u32 space_allocated; + __u32 space_configured; + __u32 logical_capacity; +} __packed; + +/* + * Extent Pool Summary + */ +struct dasd_ext_pool_sum { + __u16 pool_id; + __u8 repo_warn_thrshld; + __u8 warn_thrshld; + struct { + __u8 type:1; /* 0 - CKD / 1 - FB */ + __u8 track_space_efficient:1; + __u8 extent_space_efficient:1; + __u8 standard_volume:1; + __u8 extent_size_valid:1; + __u8 capacity_at_warnlevel:1; + __u8 pool_oos:1; + __u8 unused0:1; + __u8 unused1; + } __packed flags; + struct { + __u8 reserved0:1; + __u8 size_1G:1; + __u8 reserved1:5; + __u8 size_16M:1; + } __packed extent_size; + __u8 unused; +} __packed; + +/* + * Read Subsystem Data-Response - Logical Configuration Query - Header + */ +struct dasd_rssd_lcq { + __u16 data_length; /* Length of data returned */ + __u16 pool_count; /* Count of extent pools returned - Max: 448 */ + struct { + __u8 pool_info_valid:1; /* Detailed Information valid */ + __u8 pool_id_volume:1; + __u8 pool_id_cec:1; + __u8 unused0:5; + __u8 unused1; + } __packed header_flags; + char sfi_type[6]; /* Storage Facility Image Type (EBCDIC) */ + char sfi_model[3]; /* Storage Facility Image Model (EBCDIC) */ + __u8 sfi_seq_num[10]; /* Storage Facility Image Sequence Number */ + __u8 reserved[7]; + struct dasd_ext_pool_sum ext_pool_sum[448]; +} __packed; + +struct dasd_oos_message { + __u16 length; + __u8 format; + __u8 code; + __u8 percentage_empty; + __u8 reserved; + __u16 ext_pool_id; + __u16 token; + __u8 unused[6]; +} __packed; + struct dasd_cuir_message { __u16 length; __u8 format; @@ -461,6 +546,42 @@ struct dasd_psf_ssc_data { unsigned char reserved[59]; } __attribute__((packed)); +/* Maximum number of extents for a single Release Allocated Space command */ +#define DASD_ECKD_RAS_EXTS_MAX 110U + +struct dasd_dso_ras_ext_range { + struct ch_t beg_ext; + struct ch_t end_ext; +} __packed; + +/* + * Define Subsytem Operation - Release Allocated Space + */ +struct dasd_dso_ras_data { + __u8 order; + struct { + __u8 message:1; /* Must be zero */ + __u8 reserved1:2; + __u8 vol_type:1; /* 0 - CKD/FBA, 1 - FB */ + __u8 reserved2:4; + } __packed flags; + /* Operation Flags to specify scope */ + struct { + __u8 reserved1:2; + /* Release Space by Extent */ + __u8 by_extent:1; /* 0 - entire volume, 1 - specified extents */ + __u8 guarantee_init:1; + __u8 force_release:1; /* Internal - will be ignored */ + __u16 reserved2:11; + } __packed op_flags; + __u8 lss; + __u8 dev_addr; + __u32 reserved1; + __u8 reserved2[10]; + __u16 nr_exts; /* Defines number of ext_scope - max 110 */ + __u16 reserved3; +} __packed; + /* * some structures and definitions for alias handling @@ -551,6 +672,8 @@ struct dasd_eckd_private { int uses_cdl; struct attrib_data_t attrib; /* e.g. cache operations */ struct dasd_rssd_features features; + struct dasd_rssd_vsq vsq; + struct dasd_ext_pool_sum eps; u32 real_cyl; /* alias managemnet */ @@ -572,7 +695,5 @@ int dasd_alias_remove_device(struct dasd_device *); struct dasd_device *dasd_alias_get_start_dev(struct dasd_device *); void dasd_alias_handle_summary_unit_check(struct work_struct *); void dasd_eckd_reset_ccw_to_base_io(struct dasd_ccw_req *); -void dasd_alias_lcu_setup_complete(struct dasd_device *); -void dasd_alias_wait_for_lcu_setup(struct dasd_device *); int dasd_alias_update_add_device(struct dasd_device *); #endif /* DASD_ECKD_H */ |